Tool for loosening inner tubes of bicycle-tires



Patented D80. 27, I898.

W. H. PHELPS 8L J. F. BRENNER.

TOGL FOR LOOSENING INNER TUBES 0F BICYCLE TIRES.

(A limi'on filed me 2a, 1891.

(No Model.)

Wow Wow: Pia, J jfirazgai; M fl- IINTTEE STATES PATENT OEETE IVILLIAMII. PHELPS AND JOHN F. BRENNER, OF QUINCY, ILLINOIS.

TOOL FOR LOOSENING INNER TUBES OF BICYCLE-TIRES.

SPECIFICATION forming part of Letters Patent No. 616,487, dated December27, 1898.

Application filed June 28,1897- Serial No. 642,686. (No model.)

and JOHN F. BRENNER, citizens of the United States, and residents ofQuincy, in the county of Adams and State of Illinois, have inventedcertain new and useful Improvements in- Tools for Loosening the Innerand Outer Tubes of Bicycle-Tires and we do hereby declare that thefollowingis a full, clear, and exact description of the invention, whichwill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, whichform a part of this specification.

Our invention relates to tools for loosening the inner or air tubes fromthe outer casings of double-tubed bicycle-tires, so as to allow theair-tubes to be taken out for repairs.

It frequently happens after a few weeks or months use of double-tubedtires that the inner tube becomes so firmly attached to the outer tubethat in attempting to pull out or remove the same with the hand alone itbecomes pulled in two or otherwise injured.

The object of this invention is to provide a tool by which the air orinner tube maybe loosened or detached from the outer tube, so that itmay be readily removed or pulled out.

The invention consists, essentially, in a metal rod havinga handle atone end and the other end bent into a ring at an angle thereto, ashereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of a toolconstructed in accordance with our invention. Fig. 2 is a view of adouble-tubed bicycle-tire, showing the manner of using the tool toloosen the inner tube. Fig. 3 is a detail perspective view.

In the said drawings the reference-numeral 1 designates a metal tubeformed at one end with a handle 2 and the other end bent into circularform, forming a ring 3, projecting at an angle to the rod. The end ofthe rod after being thus bent is then turned backwardly and welded tothe rod.

In using the tool the outer tube is opened at the meeting edges and theend of the inner or air tube passed through the ring 3. The said end ofthe tube is then grasped by one hand and the ring pushed or forcedhalf-way around the tire, which will loosen or detach said inner tubefrom the outer tube. The ring is then withdrawn and the operationrepeated at the other end of the air-tube, detaching or loosening theother half of the airtube, after which the latter tube can be readilypulled out or removed from the outer tube.

Having thus fully described our invention, what we claim is- 1. As animproved article, a tool for detaching the inner tube from the outertube of a double-tubed bicycle-tire, consisting of the metal rod havingone end bent into a ring at an angle thereto of a size sufficient topermit the passage of the inner tube of a bicycletire, substantially asdescribed.

2. As an improved article a tool for detaching the inner or air tubefrom the outer tube of a double-tubed bicycle-tire, consisting of ametal rod having one end bent into circular form forming a ring at anangle to the rod and the extremity bent backward and soldered to the rodsaid ring being of a size sufficient to permit the passage therethroughof the inner tube of a bicycle-tire, substantially as described.

In testimony that we claim the foregoing as our own We have hereuntoaffixed our signatures in presence of two witnesses.

WILLIAM H. PHELPS. JOHN F. BRENNER. Vitnes'ses:

HARRY LUTENBERG, THOMAS 0. WHITE.

